Disk Warrior was utilized to establish an unfragmented MacintoshHD. Following this, SD was used to Smart Update the Full Backup.

After the update was completed, I fully expected that Disk Warrior would report that the Full Backup would also be fragment free. To my surprise, however, DW reported 40% out of order!

Why? The source was essentially fragment free...

I decided to Rebuild the Full Backup Directory, and DW accomplished this in an unexpectedly short time (much shorter than dealing with a 6% fragmented MacintoshHD). Graphing the Full Backup (via DW) now shows only a few files remaining out of order.